217480342704 has 20 divisors (see below), whose sum is σ = 561824218776. Its totient is φ = 72493447552.

The previous prime is 217480342699. The next prime is 217480342711. The reversal of 217480342704 is 407243084712.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2265420189 + ... + 2265420284.

Almost surely, 2^217480342704 is an apocalyptic number.

217480342704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

217480342704 is an abundant number, since it is smaller than the sum of its proper divisors (344343876072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

217480342704 is a wasteful number, since it uses less digits than its factorization.

217480342704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4530840484 (or 4530840478 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 42.

The spelling of 217480342704 in words is "two hundred seventeen billion, four hundred eighty million, three hundred forty-two thousand, seven hundred four".